When treeNode is disabled, its switcher is highlight and clickabled (#9539)

* When treeNode is disabled, its switcher is highlight and clickabled

* rc-tree@1.7.11

components/tree-select/style/index.less

@@ -96,10 +96,9 @@
     }
   }
   li&-treenode-disabled {
-    > span,
+    > span:not(.@{select-tree-prefix-cls}-switcher),
     > .@{select-tree-prefix-cls}-node-content-wrapper,
-    > .@{select-tree-prefix-cls}-node-content-wrapper span,
-    > span.@{select-tree-prefix-cls}-switcher {
+    > .@{select-tree-prefix-cls}-node-content-wrapper span {
       color: @disabled-color;
       cursor: not-allowed;
     }

components/tree/style/index.less

@@ -152,10 +152,9 @@
     }
   }
   li&-treenode-disabled {
-    > span,
+    > span:not(.@{tree-prefix-cls}-switcher),
     > .@{tree-prefix-cls}-node-content-wrapper,
-    > .@{tree-prefix-cls}-node-content-wrapper span,
-    > span.@{tree-prefix-cls}-switcher {
+    > .@{tree-prefix-cls}-node-content-wrapper span {
       color: @disabled-color;
       cursor: not-allowed;
     }

package.json

@@ -73,7 +73,7 @@
     "rc-tabs": "~9.2.0",
     "rc-time-picker": "~3.2.1",
     "rc-tooltip": "~3.7.0",
-    "rc-tree": "~1.7.0",
+    "rc-tree": "~1.7.11",
     "rc-tree-select": "~1.12.0",
     "rc-upload": "~2.4.0",
     "rc-util": "^4.0.4",